BREAKING: make Worker.deno unstable; remove stale worker tests

cli/ops/worker_host.rs

@@ -184,6 +184,9 @@ fn op_create_worker(
   };
   let args_name = args.name;
   let use_deno_namespace = args.use_deno_namespace;
+  if use_deno_namespace {
+    state.check_unstable("Worker.deno");
+  }
   let parent_state = state.clone();
   let mut state = state.borrow_mut();
   let global_state = state.global_state.clone();

cli/tests/integration_tests.rs

@@ -985,6 +985,7 @@ fn workers() {
     .arg("test")
     .arg("--reload")
     .arg("--allow-net")
+    .arg("--unstable")
     .arg("workers_test.ts")
     .spawn()
     .unwrap()
@@ -1080,17 +1081,6 @@ itest!(_038_checkjs {
   output: "038_checkjs.js.out",
 });
 
-// TODO(bartlomieju): re-enable
-itest_ignore!(_039_worker_deno_ns {
-  args: "run --reload 039_worker_deno_ns.ts",
-  output: "039_worker_deno_ns.ts.out",
-});
-
-itest_ignore!(_040_worker_blob {
-  args: "run --reload 040_worker_blob.ts",
-  output: "040_worker_blob.ts.out",
-});
-
 itest!(_041_dyn_import_eval {
   args: "eval import('./subdir/mod4.js').then(console.log)",
   output: "041_dyn_import_eval.out",
@@ -1483,14 +1473,6 @@ itest!(error_local_static_import_from_remote_js {
   output: "error_local_static_import_from_remote.js.out",
 });
 
-// TODO(bartlomieju) Re-enable
-itest_ignore!(error_worker_dynamic {
-  args: "run --reload error_worker_dynamic.ts",
-  check_stderr: true,
-  exit_code: 1,
-  output: "error_worker_dynamic.ts.out",
-});
-
 itest!(exit_error42 {
   exit_code: 42,
   args: "run --reload exit_error42.ts",